Toe-trimming device



June 3 1924. 1,496,009

P. M INTOSH TOE TRIMMING DEVICE Filed March 17. 1921 EN 7-0/2 I QM/M Patented June 3, 1924.

UNITED STATES PATENT OFFICE.

PAUL MCINTOSH, 0F JOHNSON CITY, NEW YORK, ASSIGNOR TO UNITED SHOE MACHIN- ERY CORPORATION, OF PATERSON, NEW JERSEY, A CORPORATION OF JERSEY.

TOE-TRIMMING DEVICE.

Application filed March 17, 1921. Serial No. 453,026.

To all whom it may concern.

Be it known that 1, PAUL MoIN'rosii, a citizen of the United States, residing at Johnson City, in the county of Broome and State of New York, have invented certain Improvements in Toe-Trimming Devices, of which the following description, in connection with the accompanying drawings, is a specification, like reference characters on the drawings indicating like parts in the several figures.

This invention relates to devices for removing surplus upper material from the toes of shoes, and an object of the invention is to provide a device convenient for use and effective in operation to trim off the surplus material to be removed at the toe of .a shoe preparatory to the laying of the outsole.

A feature of the invention consists in a novel organization comprising means for engaging the bottom .of a shoe in different spaced locations to position a toe trimming cutter in determinate relation to the toe of the upper, the construction shown comprising a portable trimming device constructed for positioning engagement with the shoe at the toe and in the shank. It is one of the objects of the invention to provide a trimming device which may be used in the course of the lasting operation on a shoe positioned by means including a bot- .tom engaging holddown member, and to this end the invention, in its illustrative embodiment, provides a novel organization constructed to be positioned over the holddown member and to engage the bottom of the shoe at the front and at the rear of said member to position the cutter in determinate relation to the toe end of the upper.

A further feature of the invention consists in a novel construction and arrangement of cutting means, the construction shown comprising a cutter mounted for swinging movement to cut in the general direction of the length of the shoe and having a cutting edge constructed to trim at one operation the entire toe end of the upper. Another feature comprises a cutter and a shearing member arranged in a novel co-operative relation to operate onthe gathered margin of the upper at thetoe. To facilitate the trimming operation and, to insure effective control of the gathered upper material, the cutter herein shown is provided with a plurality of teeth along its cutting edge, and a further feature of the invention is to be recognized in a novel construction and arrangement of parts. including. a member provided with teeth or serra tions for engagement with the upper material.

Still other features of the invention are to be recognized in novel means for stripping from a toe trimming cutter the severed scrap vision for convenient manipulation and control of the trimming device. These and other features of the invention, including various details of construction and combinations of parts, will now be more particularly described by reference to the accompanying drawings and pointed out in the claims.

In the drawings:

Fig. 1 is a view in side elevation of a device in which the invention is embodied, showing the device in position to operate upon a shoe,

Fig. 2 is a view similar to Fig. 1 of a portion of the trimming device, showing the .material, and novel means affording proparts as they are positioned at the end of the trimming movement of the cutter.

Fig. 3 is an inverted plan view of the device, and

Fig. at is a perspective View of the toe end of a lasted shoe the upper of which has been trimmed by use of the trimming device illustrated. v

The invention is herein shown in-its application to the trimming of the toe'end of an upper in the course of the toe lasting op eration performed by the 1 use of a wellknown type of bed lasting machine,characteristio features of which are shown and described in United States Letters'Pa'tent No.

1,018,477, granted on Feb. 27, 1912, upon an application of Matthias Brock, although it is to be understood that the invention is not limited to use in the course of the lasting operation or upon a shoe positioned in a machine of that particular type. As shown in Fig. 1, the shoe and 'itslast aresupported on a heel pin 2 and atoerest 4 and are further positioned by means of a holddown 6 which engages the insole substantially at the ball of the last. As thus positioned, the toe of the shoe is operated upon by end embracing wipers 8 which are advanced and closed to wipe the margin of the upper inwardly over the insole. In the lasting of a shoe of the McKay type, as herein shown, the wipers are operated to gather and wipe the margin of the upper inwardly, and after one or more advancing and closing movements have been imparted to the wipers they are partially backed off to the position illustrated. in Fig. 1 to expose for the trimming operation the surplus margin of the upper which is to be removed round the toe.

The trimming device herein shown comprises a cutter support including a plate 10 having a downwardly curved front end formed to provide a seat for a shearing blade 12 and having at its rear end a downwardly projecting lug 14 to which is secured by a screw 16 a shoe engaging foot 18 provided at its lower end with a transverse bar 20 adapted to rest on the bottom of the shoe. Mounted on the top of the plate 10 in spaced relation are two cutter supporting blocks 22 in the front ends of which a transverse pivot rod 24 is secured. Mounted to turn about the rod 24; is a cutter holder or carrier 26 having an inner shank portion positioned between the blocks 22 and an outer portion formed to provide a seat for a cutter blade 28. Positioned within a slot in the holder 26 is one end of a link 30 which is mounted on a pivot pin 52 on the holder and is connected by means of a pivot pin 3a to the inner end of an operating lever 36, this lever being mounted on a pivot pin 38 secured in upwardly extending lugs on the blocks 22. At its rear end the link 30 is connected by a spring 40 to a member 42 which is secured by the screw 16 in fixed relation to the down turned end 14: of the plate 10. The spring -10 thus serves by contraction to maintain the cutter holder 26 normally in the position illustrated in Fig. 1 wherein the ends of the pivot pin are in engagement with the blocks 22 to determine the idle position of the holder and cutter. By movement of the hand lever 36 in the direction of the arrow (Fig. 1) the cutter holder 26 maybe turned about its axis to swing the cutter 28 in the direction indicated to co-operate with the shearing blade 12 intrimming off the surplus margin of the upper. To assist in 1nanipulating the trimming device and in positioning it for the trimming operation a laterally extending handle 4A is provided which is fast on one of the blocks 22.

The cutter blade 28 is curved about an axis substantially coincident with the axis of its swinging movement, and is secured detach ably on the holder 26 by means of screws 46 to permit it to be removed for grinding. On its cutting edge the blade 28 is provided with a plurality of teeth or serrations 48 which facilitate the operation of the cutter by rendering the trimming operation more progressive than would be the case if the cutter were formed for example with a straight edge. A further advantage in the use of a blade of this shape is that the gathers or folds formed in the margin of the upper are received between the teeth of the blade and are thereby held effectively in position for trimming. The shearing blade 12 is curved about substantially the same axis as the blade 28 to co-operate with the latter in shearing off the edge of the upper as the movable blade is swung inwardly over the top of the shearing blade. The blade 12 is provided with a cutting edge curved in substantial or approximate conformity to the curve of the edge of the shoe bottom round the toe, as illustrated in Fig. 3, and is adapted to be inserted under or at the rear of the more or less upstanding margin of the upper in proximity to the partially closed wipers. The blade 12 is detachably secured to the downturned end of the plate 10 by means of screws 50 which permit it to be readily removed for grinding or for replacement. In order that the cutter 28 and the blade 12 may be relatively adjusted in the correct relation for effective co-operation with each other in assembling the parts or to take up wear, the supporting blocks 22 are each adjustably secured to the plate 10 by screws 52 and are further controlled by front and rear upsetting screws 54: and 56 respectively. By such means the cutter 28 may be adjusted with great precision toward or from the blade 12 and also angularly.

It will be noted by reference to Fig. 1 that the trimming device is positioned and steadied in operative relation to the shoe by engagement with the bottom of the shoe in different locations spaced a substantial dis tance lengthwise of the shoe. In the construction shown, for example, the shearing blade 12 is adapted torest upon the insole near the end of the toe while'the foot 18 engages the bottom of the shoe in the shank, the cross bar 20 assisting in steadying the device against lateral tipping movement. By reason of the construction and relative arrangement of the plate 10 and the foot 18 space is provided to clear the holddown 6 which engages the bottom of the shoe between the two locations where the trimming device engages the shoe. It will be noted that when the device is in operative position the acting portion of the blade 12 which cooperates with the cutter 28 to trim the upper extends forwardly under the margin of the upper in a general direction lengthwise of the shoe, and that the movement of the cutting edge of the blade 28 in active engagement with the upper is, by reason of the position of the pivot rod 24 substantially over the part to be trimmed, also in the general direction of the length of the shoe. In the construction shown provision is aiforded further for tipping the plate 10 lengthwise of the shoe to position the shearing blade and the cutter 28 in the desired relation to the toe of any particular style of shoe under treatment through relative adjustment of the lug l4: and the foot 18, the latter being mounted for movement upwardly or downwardly on said lug as permitted by a slot 58 in the foot 18 through which the screw 16 extends. VVhile the support for the movable cutter 28 whereby the latter is sustained over the bottom of the shoe includes, in the construction herein shown, the shearing blade 12, which is adapted to rest upcm the insole at the toe, and the shank engaging foot 18 adjustable relatively to the plate 10, it will be understood that in many of its aspects the invention is not limited to the particular construction and.v arrangement illustrated for positioning the cutter in operative relation to the shoe and for presenting the cutter and the shearing blade in co-operative relation.

In order to clear the teeth 18 of the movable cutter of any portion of the severed material which might otherwise cling thereto, a stripping member 60 is provided which in the construction shown conveniently comprises a piece of resilient wire anchored at its opposite ends to the blocks 22 and extending round the ends of the pivot rod 2 1 and thence into proximity to the cutter 28,

the wire being shaped to extend substantially straight across the inner face of the cutter. It will be seen by reference to Fig. 1 that the stripping member 60 is positioned initially at such. distance from the shearing blade 12 as to interfere in no way with the reception of the gathered margin of the upper between this blade and the movable -cutter,-and in the trimming operation the stripping member is en aged by the cutter holder 26 and bent d wardly, as indicated in Fig. 2. In the return movement of the cutter 28 the stripping member springs back to its initial position, and as teeth 48 are retracted beyond the member it acts to strip from the teeth any material which may be caught thereon.

In the illustrated use of the trimming device in the course of the lasting operation on a shoe of the McKay type, the toe wipers, after they have been forced fully over the toe to gather and wipe down the margin of the upper, are partially backed off to the position indicated in Fig. 1, and the trimming device is then positioned by the operator upon the bottom of the shoe, as illustrated, with the shearing blade 12 in engagement with the insole under the margin of the upper projecting in front of the wipers and with the foot 18 engaging the bottom of the shoe at the rear of the hold down. While steadyin'g' the trimming device in this position by the aid of the handle A l the operator swings the lever 36 in the end of the shoe. The operator then permits the spring 410 to swing the cutter and the lever 36 back to their initial positions, the member 60 acting to strip from the cutter 28 any portion of the severed upper material which may cling thereto. The operator then removes the trimming device from the shoe, again advances the wipers to wipe the trimmed margin of the upper more closely over the insole, and after partially retracting the wipers drives in the usual manner the upper fastening tacks. The toe of the lasted shoe is then substantially in the condition illustrated in Fig. 4, requiring no further trimming of the upper in preparation for the laying of the outsole.

While the invention is herein illustrated by reference to its use on shoes of the McKay type, it will be understood that it is not limited to use upon that particular type of shoe but may be used, for example, on welt shoes to trim the upstanding margin of the upper at the toe preparatory to the welting operation. 1

Having described the invention, what I claim as new and desire to secure by Letters Patent of the United States is 1. A device for removing surplus upper material from the toes of shoes comprising, in combination, a portable toe trimming cutter, and a support for said cutter constructed for engagement with the bottom of a shoe in different spaced locations to sustain and position the cutter in a relation to the toe end of the upper determined by such engagement.

2. A device for removing surplus upper material from the toes of shoes comprising, in combination, a portable toe trimming cutter, and a support for sustaining said cutter by engagement with the bottom of a shoe comprising members spaced from each other for engaging the shoe respectively at the toe and at the rear of the toe to determine in combination, a toe trimming cutter, and a support for sustaining said cutter by engagement with the bottom of a shoe comprising a member arranged to rest on the insole at the toe of the shoe and a member construct-- ed and arranged to engage the bottom of the shoe at the rear oi the toe and to extend across the shoe from side to side to position the cutter with respect to tipping movement laterally ot the shoe.

A device for removing surplus upper material from the toes of shoes comprising, in combination, a toe trimn'iing cutter, and a; support for sustaining said cutter by engagement with the bottom of a shoe com prising members relatively arranged to engage the shoe respectively at the toe and at the rear of the toe and relatively adjustable in directions transverse to the plane oi the shoe bottom to determine the relation of the cutter to the shoe.

6. A device for removing surplus upper material from the toe of a shoe positioned for lasting by means including a holddown member on the bottom of the shoe comprising, in combination, a toe trimming cutter, and a support for said cutter constructed to be positioned over the holddown and to sustain said cutter by engagement with the bottom of the shoe at the front and at the rear of the holddown.

7. A device for trimming the toe of an upper engaged by end-embracing wipers comprising, in combination, a cutter support constructed to be positioned over the bottom of a shoe at the rear of the wipers while the wipers are holding the upper, and a cutter mounted on said support for trimming the toe end of the upper by movement oi its cutting edge in the general direction of the length of the shoe from the toe end rearwardly.

8. A device for removing surplus upper material from the toes of shoes comprising, in combination, a cutter support constructed to b positioned over the bottom of a shoe, and a cutter pivotally mounted on said support for swinging movement about an axis extending laterally of the shoe, said cutter being constructed to trim at one operation the entire toe end of the upper from one side to the other of the bottom of the shoe.

9. A device torremoving surplus upper material from the toes of shoes comprising, in combination, a portable cutter support constructed for positioning engagement with the bottom of a shoe at the toe and at the rear of the forepart of the shoe, and a cutter mounted on said support to swing about an axis extending laterally of the shoe to'trim the toe end of the upper.

10. A devic for removing surplus upper material from the toes of shoes comprising, in combination, a cutter support constructed to be positioned in determinate relation to a comprising, in combination, a

shoe, and a cutter pivoted to swing about an axis on said support extending laterally of the shoe substantially over the part to be trimmed/said cutter having a cutting edge extending across the shoe from one side of the toe to the other to trim on? at one operation the entire surplus upper material to be removed at the toe.

11. A device for removing surplus upper material from the toes or shoes comprising, in combination, a cutter and a shearing member arranged to receive between them the surplus margin of an upper at the toe of a shoe, said cutter and shearing member being mounted for relative movement in the general direction of the length of the shoe and constructed to trim by one such movement the entire toe'end of the upper from one side to the other of the bottom of the shoe, and a support for said cutter and shearing member movable manually to position them in operative relation to'a shoe.

12. A device for removing surplus upper material from the toes of shoes comprising, in combination, a shearing member constructed to engage the inner surface of the gathered margin of an upper overlying the insole of a shoe and curved in approximate conformity to the edge of the shoe bottom round the toe, and a cutter having a cutting edge constructed to extend across the tee from one side to the other of the gathered material and mounted for swinging move ment to trim the upper in cooperation with said shearing member.

13. A device for trimming the toe of an upper engaged by end embracing wipers I shearing member constructed to be inserted under the margin of the upper in front of the Wipers, and a cutter pivoted to swing about'an axis substantially over the margin of the toe of the u over to trim said mar in b movement of its cutting edge in the general direction of the length of the shoe from the toe end rearwardly.

l i. A device for removing surplus upper material from the toes of shoes comprising, in combination, a portable toe trimming cutter mounted for operative swinging move ment to cut in the general direction of the length of a shoe, a support constructed to position said cutter by engagement with the bottom 01 the shoe, and a manually operable member connected to said cutter for operating it.

15. A device for removing surplus upper material from the toes oi shoes comprising, in combination, a movable toe trimming cutter, a support for sustaining said cutter by engagement with the bottom of a shoe at the toe and at'the shank of the shoe and including a shearing member arranged to be positioned for engagement with the inner surface of the gathered margin of the toe end of the upper, anda manually operable member for imparting operative movement to said cutter. I

16. A device for removing surplus upper material from the toes of shoes comprising, in combination, a cutter support constructed to be positioned onthe bottom or" a shoe, a cutter mounted on said support for movement to trim the upper, a handle arranged to project at one side of the shoe to assist the operator in positioning the support and cutter, and a hand lever connected to the cutter for operating it.

17. A device for removing surplus upper material from the toes of shoes comprising, in combination, a cutter support constructed to be positioned on the bottom of a shoe and having a shearing member for engagement with the inner surface of the toe end of the upper, av cutter pivoted on said support to trim the upper by movement of its cutting edge in the general direction of the length of the shoe, a spring for holding said cutter in retracted position, and amanually operable member for imparting to the cutter its trimming movement.

18. A device for ren'ioving surplus upper material from the toes of shoes comprising, in combination, a portable cutter support,

and a cutter mounted on said support and having a continuous toothed cutting edge constructed to extend across the toe of a shoe from one side to the other of the gathered margin of the upper for trimming ofi at one operation the entire surplus upper material to be removed at the toe of the shoe.

19. A device for removing surplus upper material from the toes of shoes comprising, in combination, a cutter support constructed to be positioned in determinate relation to a shoe, and a cutter mounted on said support to swing about'an axis extending laterally of the shoe to cut in the generald1rection of the length of the shoe, said cutter having on its cutting edge a plurality of teeth to receive the folds of the gathered margin of the upper between them and to trim off the surplus, margin of the gathered material as the cutter is swung about its axis.

20. A device for removing surplus upper material from the toes of shoes comprising, in combination, co-operating members portable as a unit and arranged to receive between them the gathered margin of the toe of an upper and relatively movable to trim said margin, one of said members having a continuous cutting edge including a plu rality of teeth for engagement with the upper.

21. A device for removing sin-plus upper material from the toes of shoes comprising, in combination, a shearing member manually movable to position it on the bottom of a shoe at the rear of the gathered margin of the toe end of the upper, and a cutter having a toothed cutting edge movable to trim the margin of the upper in co-operation with said shearing member.

22. A device for removing surplus upper material from the toes of shoes comprising, in combination, a movable toe trimming cutter, and a stripping member arranged relati vely to said cutter to strip there't'ron'i the severed upper material in response to movement of the cutter.

23. A device for removing surplus upper material from the toes of shoes comprising, in combination, a pivoted toe trimming cutter having a toothed cutting edge constructed to extend across the toe of a shoe from one side to the other of the gathered margin of the upper and movable to trim said margin, and a stripping member constructed and positioned to extend across said cutter from side to side and to strip therefrom the severed upper material upon a retractive movement of the cutter.

24. A device for removing surplus upper material from the toes of shoes comprising, in combination, a movable toe trimming cutter, and a stripping member of resilient material arranged to be bent by the cutter in its cutting movement and to act upon a reverse movement of the cutter to strip from the cutter the severed upper material.

25. A device for removing surplus upper. material from the toes of shoes comprising, in combination, a portable cutter support adapt-ed to be positioned over the bottom of a shoe, and a cutter mounted on said support for swinging ntiovement in the general direction'of the length of the shoe to trim the upper, said support having members for engaging the bottom of the shoe respectively in different locations spaced lengthwise of the shoe for steadying the cutter and positioning it relatively to the part to be trimmed.

26. A device for removing surplus upper material from the toes of shoes comprising, in combination, a portable cutter support adapted to be positioned over the bottom of a shoe, a cutter mounted on said support to swing about an aXis over the toe, and a hand lever mounted on said support and connected to the cutter for operating it, said support having members for engaging the bottom of the shoe respectively at the toe and at the rear of the toe to steady the cutter and position it relatively to the part to be trinnned.

27. A device for removing surplus upper material from the toe of a shoe positioned for lasting by a holddown member engaging the bottom of the shoe comprising, in combination, a toe trimming cutter, and a support on Which said cutter is movably mounted for trimming the toe of the upper, said support having thereon a shearing member for engagement With the bottom of the shoe at the rear of the marginal portion of the toe of the upper to co-operate With the cutter and another member for engaging the bot tom of the shoe at the rear of the holclclo wn to steady the cutter and position it relatively to the part to be trimmed.

28. A device for removing surplus upper material from the toes of: shoes comprising, in combination, a portable cutter support adapted to be placed upon the bottom of it shoe and having thereon at cutter and ashee-ring member relatively movable in the general direction of the length of the shoe to trim the upper, and manual means on said rAUL Maureen. 

